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CN-114645943-B - Claw gear shifting device and driving mechanism

CN114645943BCN 114645943 BCN114645943 BCN 114645943BCN-114645943-B

Abstract

The invention relates to a claw shifting device (5) comprising a first shifting sleeve (17) and a fixed coupling element (19), wherein the first shifting sleeve (17) and the coupling element (19) each comprise at least one recess (31, 35) and at least one web section (32, 36) for forming a through-connection, wherein the first shifting sleeve (17) and the coupling element (19) can be arranged together radially outside of a first shaft, wherein the first shifting sleeve (17) is movable along the first shaft and the coupling element (19) is fixedly connectable to the first shaft, and a drive mechanism (1) comprising at least one drive machine with a transmission of the first shaft, a second shaft and a third shaft, a housing, and such a claw shifting device (5).

Inventors

  • S. Reyna
  • M. Weiss

Assignees

  • 采埃孚股份公司

Dates

Publication Date
20260512
Application Date
20211215
Priority Date
20201218

Claims (8)

  1. 1. Claw shifting device (5) with a first shifting sleeve (17) and a fixed coupling element (19), wherein the first shifting sleeve (17) and the coupling element (19) each have at least one recess and at least one web section to form a through-going joint (22), characterized in that the first shifting sleeve (17) and the coupling element (19) can be arranged jointly radially outside a first shaft (7), wherein the first shifting sleeve (17) is movable along the first shaft (7) and the coupling element (19) is fixedly connectable with the first shaft (7), wherein the claw shifting device (5) has a shiftable second shifting sleeve (18) between a first shifting position, in which a connection between a drive machine and the first shaft (7) can be closed, a second shifting position, in which a connection between the drive machine and a third shaft (9) can be closed, and wherein the second shifting sleeve (18) is mounted on the first shifting sleeve (17).
  2. 2. Claw shifting device (5) according to claim 1, characterized in that the first shift sleeve (17) is shiftable between a first shift position, in which the connection between the first shaft (7) and the housing (6) is closable, a second shift position, in which the connection between the first shaft (7) and the second shaft (8) is closable, a fourth shift position, in which the connection between the first shaft (7) and the second shaft (8) is separable, and/or a fifth shift position, in which the connection between the first shaft (7) and the third shaft (9) is closable.
  3. 3. Claw shifting device (5) according to claim 1, characterized in that the through-going joint (22) is adjustable to be unloaded in the first shift position of the second shift sleeve in order to enable shifting of the first shift sleeve (17).
  4. 4. Claw shifting device (5) according to claim 1, characterized in that the at least one recess of the first shifting sleeve (17) is substantially through-engageable in a radial direction and the at least one recess of the coupling element (19) is substantially through-engageable in an axial direction.
  5. 5. Claw shifting device (5) according to claim 1, characterized in that the at least one web section of the first shift sleeve (17) extends substantially in an axial direction and the at least one web section of the coupling element (19) extends substantially in a radial direction.
  6. 6. Drive mechanism (1) with at least one drive machine, a transmission (4) with a first shaft (7), a second shaft (8) and a third shaft (9), and a housing (6), characterized in that the drive mechanism (1) has a claw gear change (5) according to any one of claims 1 to 5.
  7. 7. The drive mechanism (1) according to claim 6, characterized in that the drive mechanism (1) has a first drive machine (2) and a second drive machine (3), and that the gear stage of the transmission (4) is powershiftable by means of the claw shift device (5).
  8. 8. The drive mechanism (1) according to claim 6, characterized in that the first shaft (7), the second shaft (8) and the third shaft (9) are mounted in each other.

Description

Claw gear shifting device and driving mechanism Technical Field The invention relates to a claw shifting device having a first shifting sleeve and a fixed coupling element, wherein the first shifting sleeve and the coupling element each have at least one recess and at least one web section to form a through-connection. The invention also relates to a drive mechanism having at least one drive machine, a transmission with a first shaft, a second shaft and a third shaft, and a housing. Background Document DE 10 2014 201 250 A1 relates to a device for shiftably coupling a base with two coaxial shafts, namely an outer shaft designed as a hollow shaft and an inner shaft arranged radially inside the outer shaft, comprising a sliding sleeve which is axially slidably and rotationally mounted with respect to the base, a first operative connection which forms an anti-rotational connection with a corresponding operative connection of the inner shaft in a first sliding position of the sliding sleeve, and a second operative connection which forms an anti-rotational connection with a corresponding operative connection of the outer shaft in a second sliding position of the sliding sleeve. In order to reduce the need for installation space, it is proposed according to DE 10 2014 201 250 A1 to arrange a sliding sleeve radially between an inner shaft and an outer shaft and to mount it on a hub fixed to a base, the outer shaft being mounted on the outside of the hub and the inner shaft being mounted on the inside of the hub, wherein the hub has slot-like radial penetrations through which one of the operative connection means of the sliding sleeve protrudes. Disclosure of Invention The basic object of the invention is to structurally and/or functionally improve the claw shifting device mentioned at the outset. The invention is based on the object of structurally and/or functionally improving the drive mechanism mentioned at the outset. The claw shifting device is used for opening and/or closing a shiftable connection. In this context, "shiftable connection" means in particular a connection in a mechanical power path, which can be shifted between an open shift position (mechanical power path is disconnected and mechanical power flow cannot pass through the connection) and a closed shift position (mechanical power path is closed and mechanical power flow can pass through the connection). In this context, "shifting" means in particular opening or closing a shiftable connection and/or changing between an open shift position and a closed shift position. The mechanical power comprises in particular a torque and/or an angular velocity. The shift sleeve is in particular a mechanical element which serves as a shift element for shifting at least one shiftable connection. The shift sleeve may have an actuation section for applying an actuation force to the shift sleeve, a first connection section for connection with a first machine element, and at least one further connection section for connection with at least one further machine element. The connecting section of the shift sleeve can be embodied as a toothing. The teeth may be axially movable. The machine elements that can be connected by means of the shift sleeve can be shafts, gears and/or housings. The shift sleeve may be movable between at least two shift positions. The shift sleeve may be non-rotatably connectable with the shaft and movable along the shaft. The claw shifting device, the first shifting sleeve, the coupling element and the first shaft may have a common axis. The first shift sleeve may be movable along the axis. The information "axial", "radial" and "circumferential" refer to the direction of extension of the axis unless otherwise indicated or otherwise indicated in context. The "axial direction" then corresponds to the direction of extension of the axis. The "radial direction" is then the direction perpendicular to the direction of extension of the axis and intersecting the axis. The "circumferential direction" then corresponds to the direction of the circular arc about the axis. The axis may be a rotational axis and/or a linear axis. The term "first shift sleeve" does not mean herein that another shift sleeve must also be present. The first shift sleeve may extend over a larger axial area than the coupling element. The first shift sleeve may have the shape of a sleeve, a tube or a hollow cylinder. The first shift sleeve may have axial sections of different outer diameters. The first shift sleeve may have at least one axial section with an outer diameter adapted for receiving the coupling element. The first shift sleeve may have three connection sections. The connection sections of the first shift sleeve may be arranged in axial sequence. The connecting sections of the first shift sleeve can each be arranged radially inward or radially outward. The connection sections of the first shift sleeve can each be embodied as an internal toothing or an external toothing. The